Practical Soil-Shallow Foundation Model for Nonlinear Structural Analysis

Abstract EN

Soil-shallow foundation interaction models that are incorporated into most structural analysis programs generally lack accuracy and efficiency or neglect some aspects of foundation behavior.

For instance, soil-shallow foundation systems have been observed to show both small and large loops under increasing amplitude load reversals.

This paper presents a practical macroelement model for soil-shallow foundation system and its stability under simultaneous horizontal and vertical loads.

The model comprises three spring elements: nonlinear horizontal, nonlinear rotational, and linear vertical springs.

The proposed macroelement model was verified using experimental test results from large-scale model foundations subjected to small and large cyclic loading cases.